Actor Ashton Kutcher, probably best know for Dude Where’s My Car and being married to Demi Moore, had his Twitter account hacked while attending the TED 2011 conference in Southern California this week. A hacker channeling the spirit of Gene Shalit logged on to Kutcher’s accounting, tweeting, “Ashton, you’ve been Punk’d. This account is not secure. Dude, where’s my SSL?” to the actor’s 6.3 million followers.Shortly after, Kutcher’s unprotected read, “P.S. This is for those young protesters around the world who deserve not to have their Facebook & Twitter accounts hacked like this. #SSL” SSL is Secure Sockets Layer–a reference to the lack of security protecting Kutcher’s account.According to The Daily Mail, the hacker is believed to have used Firesheep to take over Kutcher’s account while the actor was logged into public Wi-Fi. Shortly after the attack, Twitter responded on its official @twitterglobalpr account, writing, “Users can use Twitter via HTTPS: http://t.co/q84H6K3. We’ve long been working on offering HTTPS as a user setting & will share more soon.” The messages are still present on Kutcher’s account, 13 hours after the attack.